//import java.util.Arrays;
//import java.util.Date;
//import java.util.Scanner;
//import java.util.*;
//import static java.lang.System.*;

import aa.Dog;

import java.util.Scanner;

class Stu {

    /*public String name;
    public int age;
    public int id;*/
    private String name;
    private int age;
    private int id;

    public Stu(){

    }
//    public String getName(){
//        return this.name;
//    }
//    public void setName(String name){
//        this.name = name;
//    }


    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public Stu(String name, int age, int id) {
        this.name = name;
        this.age = age;
        this.id = id;
    }

    //    public Stu(String name, int age, int id){
//        this.name = name;
//        this.age  = age;
//        this.id = id;
//    }
    public void PrintStudent(){
        System.out.println(this.name+this.age+this.id);
    }
    private void doClass(){
        System.out.println(this.name+"正在上课...");
    }

    public static void main(String[] args) {
        //Cat cat = new Cat();
    }
}



public class Test {
    public static void main(String[] args) {
        Test test = new Test();
        test.func();
        main6();
        //func();
    }
    public static void main6() {
        //System.out.println(10);
        System.out.println(10);
    }
    public static void main5(String[] args) {
        Scanner scanner = new Scanner(System.in);
        Date date = new Date();
       // Arrays.sort([2,51,5,2]);
    }
    public void func() {
        int a = -10;
        System.out.println(Math.abs(a));
    }
    public static void main3(String[] args) {
        Stu stu = new Stu();
        //stu.name = "张三";
        stu.setName("张三");
        System.out.println(stu.getName());
    }
    public static void main2(String[] args) {
        Stu student = new Stu("张三",20,1);
        Stu student1 = new Stu("lisi",19,2);
       // System.out.println(student1.name);
    }
    public static void main1(String[] args) {
        Stu student = new Stu("张三",20,1);
        Stu student1 = new Stu("lisi",19,2);
        //student1.doClass();
    }
}
